cocoons Papillion

I inquired when the cocoons would come out.
The cocoons of the butterfly Papillion Machaon, or Swallowtail or Koninginnepage
Last year (See posts of August and September 2006)

The cocoons are still sitting quiet and like dead on their branches.
there are green ones and grey/brown ones.
I thought the butterflies would come out maybe may or June,
but now I heard from 2 sides, it is possible they come out end of march or beginning of April.!

I have to to look after them more often.
because I don't want to miss this great opportunity to see this happen!